/* 3D 截图展示区 */
.screenshots-showcase {
  padding: 8rem 0;
  background: var(--dark-bg-secondary);
  position: relative;
  overflow: hidden;
}

.screenshots-showcase::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 163, 0.3), transparent);
}

.screenshot-hero {
  margin-bottom: 4rem;
  text-align: center;
  animation: fadeIn 1s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.screenshot-hero img {
  width: 80%;
  max-width: 1000px;
  height: auto;
  border-radius: 8px;
  box-shadow: var(--shadow-xl), var(--glow-green);
  border: 1px solid var(--glass-border);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.screenshot-hero img:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-xl), var(--glow-accent);
}

.screenshot-caption {
  margin-top: 1.5rem;
  font-size: 1.1rem;
  color: var(--text-secondary);
}

.screenshot-subtitle {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 3rem 0 2rem;
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.screenshot-item {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.screenshot-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at center, rgba(0, 255, 163, 0.1), transparent);
  opacity: 0;
  transition: opacity 0.5s ease;
}

.screenshot-item:hover::before {
  opacity: 1;
}

.screenshot-item:hover {
  transform: translateY(-12px) scale(1.03);
  border-color: rgba(0, 255, 163, 0.3);
  box-shadow: var(--shadow-xl), var(--glow-green);
}

.screenshot-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: all 0.5s ease;
}

.screenshot-item:hover img {
  transform: scale(1.05);
}

.screenshot-item h3 {
  padding: 1.2rem;
  margin: 0;
  font-size: 1.1rem;
  color: var(--text-primary);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
}

.screenshot-item p {
  padding: 0 1.2rem 1.2rem;
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
}

/* Download Section */
.download-section {
  padding: 6rem 0;
  background: var(--dark-bg);
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.download-card {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  padding: 2.5rem 2rem;
  text-align: center;
  backdrop-filter: blur(20px);
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.download-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient);
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

.download-card:hover::before {
  transform: scaleX(1);
}

.download-card:hover {
  transform: translateY(-10px);
  border-color: rgba(0, 255, 136, 0.3);
  box-shadow: 0 20px 60px rgba(0, 255, 136, 0.2);
}

.download-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.download-version {
  color: var(--text-accent);
  font-size: 1rem;
  margin-bottom: 2rem;
  font-weight: 500;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  background: var(--gradient);
  color: #000;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0, 255, 136, 0.3);
  position: relative;
  overflow: hidden;
}

.download-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s;
}

.download-btn:hover::before {
  left: 100%;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 255, 136, 0.5);
}